Alert archive / Alabama / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 101, NWS Mobile, AL

March 30, 2017Conecuh County, Escambia County, Alabama

NWS Mobile, AL issued this severe thunderstorm warning at Mar 30, 2017, 12:29 PM CDT for Conecuh County, Escambia County, Alabama. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 30, 2017, 12:29 PM CDT (17:29 UTC)
Expired: Mar 30, 2017, 1:15 PM CDT
In force: 46 min
Issued by: NWS Mobile, AL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Conecuh County, AL, Escambia County, AL

The radar

The Eglin Afb radar (KEVX), 137 km from the middle of the area, began a volume at 17:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Mar 30, 12:40 PM CDT	HAIL 1	Castleberry, AL

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 5.5 hours before the alert went out and 192 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 5 J/kg
Mixed-layer CIN: -258 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: -23 m²/s²
0-3 km storm-relative helicity: -14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

627 
WUUS54 KMOB 301729
SVRMOB
ALC035-053-301815-
/O.NEW.KMOB.SV.W.0101.170330T1729Z-170330T1815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mobile AL
1229 PM CDT THU MAR 30 2017

The National Weather Service in Mobile has issued a

* Severe Thunderstorm Warning for...
  North central Escambia County in south central Alabama...
  Central Conecuh County in south central Alabama...

* Until 115 PM CDT

* At 1228 PM CDT, a severe thunderstorm was located over Castleberry,
  or 11 miles south of Evergreen, moving north at 25 mph.

  HAZARD...60 mph wind gusts and quarter size hail. 

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Evergreen, Castleberry and I65 And US 84. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3117 8694 3123 8714 3164 8703 3160 8689
      3159 8689 3158 8687 3155 8687 3153 8684
      3152 8675
TIME...MOT...LOC 1728Z 199DEG 23KT 3127 8702 

HAIL...1.00IN
WIND...60MPH
 
$$

05

2 follow-up statements

648 
WWUS54 KMOB 301740
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1240 PM CDT THU MAR 30 2017

ALC053-301749-
/O.CAN.KMOB.SV.W.0101.000000T0000Z-170330T1815Z/
Escambia AL-
1240 PM CDT THU MAR 30 2017

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ESCAMBIA COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3126 8689 3126 8706 3164 8703 3160 8689
      3159 8689 3158 8687 3155 8687 3153 8684
      3152 8675
TIME...MOT...LOC 1739Z 199DEG 23KT 3134 8699 

$$

ALC035-301815-
/O.CON.KMOB.SV.W.0101.000000T0000Z-170330T1815Z/
Conecuh AL-
1240 PM CDT THU MAR 30 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CDT
FOR CENTRAL CONECUH COUNTY...

At 1239 PM CDT, a severe thunderstorm was located near Castleberry,
or near Evergreen, moving north at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Evergreen, Castleberry and I65 And US 84. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3126 8689 3126 8706 3164 8703 3160 8689
      3159 8689 3158 8687 3155 8687 3153 8684
      3152 8675
TIME...MOT...LOC 1739Z 199DEG 23KT 3134 8699 

HAIL...1.00IN
WIND...60MPH
 
$$

RR

197 
WWUS54 KMOB 301751
SVSMOB

Severe Weather Statement
National Weather Service Mobile AL
1251 PM CDT THU MAR 30 2017

ALC035-301815-
/O.CON.KMOB.SV.W.0101.000000T0000Z-170330T1815Z/
Conecuh AL-
1251 PM CDT THU MAR 30 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CDT
FOR NORTHEASTERN CONECUH COUNTY...

At 1250 PM CDT, a severe thunderstorm was located over Evergreen,
moving north at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees. 

Locations impacted include...
Evergreen and I65 And US 84. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3132 8687 3137 8702 3164 8703 3160 8689
      3159 8689 3158 8687 3155 8687 3153 8684
      3152 8675
TIME...MOT...LOC 1750Z 199DEG 23KT 3141 8696 

HAIL...1.00IN
WIND...60MPH
 
$$

RR

The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 30, 5:07 AM CDT	Rip Current Statement	MOB	Baldwin, Mobile	24 hr
Mar 30, 11:19 AM CDT	Severe Thunderstorm Warning	MOB	Mobile, Washington	41 min
Mar 30, 11:52 AM CDT	Severe Thunderstorm Warning	MOB	Clarke, Washington	38 min
Mar 30, 11:53 AM CDT	Special Weather Statement	MOB	Monroe	52 min
Mar 30, 11:55 AM CDT	Special Weather Statement	MOB	Conecuh, Escambia	50 min
Mar 30, 12:08 PM CDT	Special Marine Warning	MOB		97 min
Mar 30, 12:28 PM CDT	Severe Thunderstorm Warning	MOB	Monroe, Wilcox	47 min
Mar 30, 12:38 PM CDT	Special Weather Statement	MOB	Mobile	52 min
Mar 30, 12:45 PM CDT	Special Weather Statement	MOB	Mobile	45 min
Mar 30, 12:58 PM CDT	Severe Thunderstorm Warning	MOB	Monroe, Wilcox	47 min
Mar 30, 1:08 PM CDT	Special Weather Statement	MOB	Monroe	37 min
Mar 30, 1:24 PM CDT	Severe Thunderstorm Warning	MOB	Butler	51 min
Mar 30, 1:39 PM CDT	Special Marine Warning	MOB		66 min
Mar 30, 1:41 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Mobile	18 min
Mar 30, 2:07 PM CDT	Severe Thunderstorm Warning	MOB	Butler, Crenshaw	23 min
Mar 30, 2:15 PM CDT	Special Weather Statement	MOB	Baldwin	45 min
Mar 30, 2:18 PM CDT	Special Marine Warning	MOB		87 min
Mar 30, 2:28 PM CDT	Special Weather Statement	MOB	Crenshaw	47 min
Mar 30, 2:33 PM CDT	Special Weather Statement	MOB	Monroe, Wilcox	57 min
Mar 30, 2:39 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Mar 30, 2:44 PM CDT	Areal Flood Advisory	MOB	Clarke, Monroe, Wilcox	3 hr
Mar 30, 3:40 PM CDT	Special Marine Warning	MOB		95 min
Mar 30, 3:41 PM CDT	Special Marine Warning	MOB		64 min
Mar 30, 3:58 PM CDT	Special Weather Statement	MOB	Escambia	47 min
Mar 30, 5:00 PM CDT	Special Marine Warning	MOB		90 min
Mar 30, 5:31 PM CDT	Special Weather Statement	MOB	Butler, Covington, Crenshaw	59 min

Nearby

Severe Thunderstorm Warnings in Alabama, 2017 Every severe thunderstorm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.